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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.